.At Preply, we are unlocking human potential through learning.We believe learning with a great tutor is life-changing. That's why we match online tutors from across the globe with learners and empower them to create live language classes with AI-powered tools and learning materials. This is how we deliver progress, create engagement and keep our global community of learners motivated. So far, over 32,000 tutors have given more than 15 million lessons to learners from over 175 countries.The Preply Engineering Team provides the tools to help unlock human potential through learning.We work primarily with Python/Django to build scalable and robust applications. We implement A/B tests to prove the value of our initiatives and improve our product based on data and feedback. As part of our commitment to ensuring high-quality products, we prioritize monitoring and metrics analysis to identify areas for optimization and ensure our services are performing at their best. Our team is made up of talented engineers who are passionate about solving complex problems and developing innovative solutions to drive our company's success.At Preply, we release our product 50-60 times per day by leveraging top-notch CI/CD processes. As a fast-growing company, we have diverse technical challenges that will allow you to develop your skills at scale.Meet the team!You will be joining the Payments team, a cross-functional unit composed of 5 dedicated engineers, a Product Manager, Tech Lead, Data Analytics, and an Engineering Manager. Our team is primarily focused on the optimization of payment providers, payouts, fraud detection, and finance reconciliations. We work collaboratively to ensure the most secure and efficient payment transactions for our users.What you'll be doing:Exploring new monetization initiatives for the companyDeveloping features and A/B tests focused on the Checkout page and payment processingSupporting the payments engineering strategy to design and implement a Universal Checkout and Ordering architecture across the companyImproving the observability and quality of the system, striving for best-in-class standards in such a critical area as paymentsCollaborating with Product Manager, Data Science, and Finance leaders to design effective fraud prevention mechanismsWorking directly with payment providers to ensure the lowest fees and stable integration for PreplyWhat you need to succeed:A great collaborator with excellent verbal and written communication skills. Minimum B2 English level.Senior-level experience building modern applications in Python/DjangoReact or other frontend-focused language experience to occasionally contribute to our FE systems.Be data-oriented. Work closely with production data and our Data Analyst to find insights. SQL, Amplitude, Looker skills are beneficial.Be pragmatic. Balance short-term speed of development with the long-term technical quality of our systems.Be a leader